Valve-refacing tool



v R. BEAN. v VALVE REFACING TOOL.

APPLICATION FILED AUGJB. 1919.

Patented Nov. 16,1920.

Inventor l ttor/zeg `UNITED STATES PATi-:NT OFFICE.

' noscon BEAN, `or ismermnonro.

VALVE-REFACING TOOL.

T 0 lall @07mm t may c 'oncemf Be it known that I, Rosoon BEAN, a citizen of the United States, 4residing at Berea,

in the county of Cuyahoga vand State of Ohio, have invented certain new and usefuly Improvements 1n Valve-Refacing rFools, of

Vvreface the heads -of :gas yengine valves com-Y monly known-.as puppet valves,

The iprimaryfebjectof the invention Ais l:the

provision' of a generally improved tool of this yclass which -willbeexceedingly simple efficient in use.' Y

'A further object is the provision of an improved toolv of this'class in which improved i valveV and valvey cutter carrying members are provided so arranggged and ydisposedV relative to each other as t0 hold and carry the vrotating valve stem 4and valve head in proper position to the improved cutter so fthat .the yface cut upon the pe- :ripheryofthe valve -head will be at a proper angle to the common axial plane of the valve v stem.

A still Vfurther object Yis theA provision of anu improved multiple faced cutter having :its cutting facesextending at lright angles toeach-other and so arrangedand positioned with lrespectto the stem carrying bearings and the head ofthe valve asto be interchangeable in the tool carrying o r cutterv carrying vmember so as to provide eight cutting edges, the improved cutter being also S0` mounted as to be firmly held in proper angularrelation tothe revolving valve head and at the same time provide ample clearance -for .the cutting edges of the cutter.

A still further object of the invention is the provisionof improved adjustable bear-l ings adapted to removably receive and con tain the valve stemrof the valve to be treated,

and havingimproved means forA adjusting such Vbearings to confo'rmto the particular valve stem-and hold the same together with the cutterhead in properposition while being .rotated inthe valve head cutting or re- Y facing operation.

Astill further and veryimportant object of theinventioniis the provision of animproved coiled tension spring mountedat Ione side of the valvev stemA receivingbearings adjusting device and valve stem rotating` or operating handle.

Specification of Letters Patent. Patented' NOV,l 16, 1920, Application flied August 1s, 1919. serial No. 318,123. y

1With the above mentionedand other ends in'viewtthe invention consistsfinl the novel construction, arrangement and combination of parts, hereinafter described, 'illustrated in one of itsembodiments in the accompany- 1ng drawings, and p articularlypointed out in the appended claims.

Referring to the drawings, forming apart f of this specification, -Figure 1, is ,a front elevation `of a tool constructed in accordance with this invention, thevalve to .be

operated upon beingl shown in dotted lines` and the combined operating handle and Ltension-device being shown partly in section.V v for the purpose of clearer illustration of thev parts. c* l I Fig. 2, an end view partly -in section taken on line of Fig. 1., .i

Fig. 3, a cross sectional view taken on line 3+?, of Fig. l.

multiple faced cutter tool detached. l

Similar numerals of reference designate like parts lthroughout all the figures ofthe drawings.

.The improved tool comprises a suitable frame l, provided with spaced bearing members la, toremovably receive `and contain the stem 2, of the valve to betreated or,re-,

faced.

As av convenientl means of holding the frame and the valve while being operated upon either by a hand or by a vise or other convenient means of support, the frame 1 bearings la, areV preferably split, as at lc, adjusting Vscrews lb, as"

and provided shown.

`Asa means ofproperly holdingandv sup#A porting'the Acutter hereinafter referred ,to relatively to the lbeveled'edge `or face'Qa, lof

Y v a ase` Fig. 4, a .perspective view of the improved ,I

the valve head 2l?, and as a meansof present# ing the cuttingedge ofthe tool atthe'proper angle to the common axialr plane of the stem 2, (usually at an angle of abouty 45 degrees) the frame 1, is provided with `a tool cutter car. in Amember .1 havin its common orforming one edge ofthe face of .the cutter vintoV a cutting edge 'and affording ample clearance, the tool or cutter carrying-nieml ber 1e, is ofi-set to one side ofthe plane passing through the axial plane or common center of the stem 2, 'and head 2b. as Will clearly appear-upon reference to Fig.d 2, of the draW- ings. :As a

various cutting `facesand also supporting the same in proper position,'the cutter carry- A`ing meinberle, iis-provided with a cutter re- Y Y ceiving recess providing. parallel extending sides or shoulders 1f,l adapted to receive and abut against-the opposite parallel extending Y Y face sides ofthe cutter.

soY j t the valve head 2bbeing treated and thus they plurality of cutter faces 3a, extending' at right angles'to each other and arranged uni- ...'formly at right angles to the face sides -of the cutter 3, so that When the latter is mounti .d ed in theoff-set cutter carryingmember 1,

edge With respect tothe beveled portion of cutter. faces 3a, present .oppositekcutting edges so that when the edges on one side Abecome dull the plate orcutter 3, Vmay be reversed and the opposite edges Vbe used,

thereby providing for eight cutting edges.

ivhere the cutter is provided with four sides, as shown. i l' l' Y .As a means of securing the cutter 3, in

place, the latter isjprovided With a central fastening opening 3b, adapted to receive and contain a suitable fasteningv and clamping element, in the present instance, in the form of a threaded screw 4:, passingthrough the same and through a/suitable opening in the cutter carrying member 1e, and secured and `cllamped on the opposite, side 'by means of a nut 4?. l j

As a means tension upon the valve'head asthe latter is revolved through'the mediuin'of the valve stem2, one sideof the frame is provided 'with a" coiled tension spring 5,-having one end secured ina suitable opening in one of the 'bearing members'V 1a, said spring extending in substantiallythe same axial'planeVV vrwith the plane of the bearing openings 1"?,

and being of proper size to receive and con- Y V'tain they end of the valve stem 2,'and asfa means of adjusting the tension of the spring y 5, and alsorotatifng the stem 2, the outer end of the latterisfprovided Vwith combined spring tension adjusting device and handle V6, ythe headofthehandle', being adjustably securedon the stem2, by means of 'a the edge of the face 8a, Will form acutting of providing for the proper suitable adjusting element 6a, in the present instance, in the specific form of a set screw. It will thus vbe seen thatl the handle and spring tension adjusting device 6, may be readily attached to the valve stem and that the tension of the valve head upon the ad- `From the foregoing description, taken in connection with the accompanying drawings, the operation andadvantages of my invention will be readily understood.

Having thus described one ofV theembodi- Y Y *Y y ments of my invention, What I claim and demeans of interchangeably receiving I the improved cutterso as to utilize all ofY its valve and provided Witha cutterVV and cut-v ter carrying member,a relativelyfixed coiled tension spring carried 'byfand attached to justable cutters 3, may be readily regulated.

.85 said vframe at one-side adapted to receive A 0 f Y Y the valve stem, anda combined spring tenrIlhe improved cutter 3, is provided with a sionadjusting device and handle adjustably said spring.

carrying arm extending to one VViside thereof at an angle of 45 degrees from the axial plane of said bearings and providedvvith'a cutter receiving recesshaving its sides extending at right angles to the common longitudinal plane of said tool carrying inember, and a reversible'cutter tool having parallel sides and providedwith four faces extending at right angles to each other and said. parallel sides and fitted in saidtool rel cei'ving recess. Y Y

3. In combination with lthe frameV of a Y valve refacing tool provided lwith bearings.

mg'froin the commonaxial plane ofV said valve stem receiving bearings; ofa multiple ranged-to extend at an angle to'said axial plane and off-set to one side thereof and to.

the side opposite the direction of rotation of said valve stem When insertedin saidA bearings, whereby the cutting face forms its own clearance at the rear of the cuttingedgeV faced reversible cutter on saidV cuttercarry-- ing member having its cutting edges .ar-'Y and relativetto the edge ofthevalve being, 1

refaced. so 'that all cutting faces may be used',

tion of a frame provided with bearing means to receive and carry the stem of the valve toVV posite the direction of rotation, whereby' Y ea l1 cuttingedge forms vits own clearance 4. In avalve refacing'tool, the Vcombinawith the face of the valve being refaced so faces located so that any one of its edges that all edges may be utilized. may form an active cutting edge inclined at 5. In Aa tool for refacing valve parts, a an angle to the axis of the valve parts With multiple faced cutter each face of which has its other or Y opposed face extending from 15 a plurality of cutting edges, a cutter carrier said active cutting edge arranged to form its provided with a guide to hold the valve own clearance whereby all of the cutting parts and the cutter in proper relative opedges formedbythe faces'of the cutter may erative relation, and fastening and locating be utilized. elements on said cutter ,carrier for posi- In testimonyv whereof I have affixed my 20 tively locating and securing said cutter in signature.

predetermined positions With any one of its g yROSCOE BEAN. 

